Yielding mounting for picker rolls



Dec. 1, 1931. T. o. OTT 1,834,862

YIELDING MOUNTING FOR PICKER ROLLS Filed Aug. ll, 1930 2 Sheets-Sheet l Dec. 1, 1931. T, 0, OTT 1,834,862

YIELDNG MOUNTING FORPICKER ROLLS.

Filed Aug. ll, 1930 2 Sheets-Sheet 2 abbi/MM35 Patented Dec. 1, 1931 uNiTvEDsTATl-:s PATENT OFFICE,

THOMASOLIVER OTT, F COLUMBUS, GEORGIA, ASSIGNOR TO CEN-TENNIAL COTTON GIN C0., OF COLUMBUS, GEORGIA, A CORPORATION OF GEORGTA YIELDING MOUNTING FOR PICKER ROLLS Application Vfiled AugustA 11, 1930. Serial No. 474,519.

special yielding mounting for the picker roller so that when any obstructing material arrivesv between the picker roller and the coop-y erating saws and ribs, the picker roller will,

. by the obstruction itseli, be caused to yield or spring backward, permitting the obstruction to pass and thereafter return to its normal Y position in predetermined relationto its asroll with respect to its sociated saws and ribs. Y

Another object 'of the invention is to provide such a picker roller mounting that isV readily adjustable both vertically and horizontally and which is provided withrquickly operable` devices for .adjusting'the picker proximity to the associated saws and ribs.V Y v Other objects and advantagesof the invention will 'appear from they following description,`taken in `connection withthe accompanying drawings, which illustrate a preferred embodiment of the invention, and in which:v

Fig. 1 is a fragmentary end elevation of a hullerF gin embodying thel automatic' dis` chargepicker roll constructed in accordance with the present invention; lFig. 2 is a vertical'section'al view taken on the line 2-2 of Fig. 1;

rFig. 3 is a'hori'zontal sectional" view on theline 3-3 'of Fig.` 1;

Fig. Ll is avertical'sectional view taken on the line 4 4 of Fig. 1L

Referring in detail to the accompanying drawings, a movable front cover plate 11 of a huller gin is'pivoted at 12 and swings'relative tothe side plates 13 which carry the picker roll mounting and associated mechanism oi the present invention.

A picker' roll 15'is carriedY by a shaft 16, which is` mounted in an antifriction bearing 18. The bea-ring 18 is carried in a bearing housing' plate 20. The plate '20 in thepresent embodiment is substantially T-shaped, as indicated in F ig. 1, and is adjustably carried taken by a swinging varm 21l pivotallyy mounted for rock-ing 'movement on av stubj shait22, which is iixed to the outer face of the end plate 13. The bearing plate 2O is adjustably fastened to the swinging arm 21 by a pair of bolts 24 and 25, which are threaded into the arm 21 and have their shanks passing through vertically extending slots 27 in the bearing plate 20. Loosenving oi the bolts 2a and 25thus permits the raising or lowering of the bearing plate 20 with respect to the swinging arm 21 and consequently eiiects a vertical adjustment of the picker roll with respect to its cooperating saws 29. At its lower end the bearing plate has an inwardly extending projection 30, which is vertically threaded for the reception of a limiting stop bolt 31, which is provided with a lock nut 32 for maintaining the desired length of its shank extending upwardly from the projection 30, the stop bolt 31 being adapted to bear against a bottom edge of the arm 21, thus limiting the amount of upward movement of the bearing plate 20 with respect to the swinging arm 21 and consequently limiting the amount of vertical adj ustment of the picker roll 15.

The invention provides yieldable means for maintaining the picker roll and saws in predetermined horizontal relation to cach other, but in such a manner that this relation changes and the picker roll moves when an obstruction is encountered, to permit the obstruction to pass through, ai'ter which the picker roll returns to its normal or predetermined horizontal relation to the cooperating saws.

ln the present embodiment of the invention, a slotted opening 3G is provided near the lower end of the swinging arm 21 for the reception of one end of an adjustingrod 37, which has limited rocking movement in the slot about the pivot pin 39. The other end of the adjusting rod 37 is threaded and passes through a slotted unthread'ed opening formed in lower lateral extension 42 oi" the side plate 13. Beyond this extension an adjusting rod operating handle member 43 is in threaded engagement with the outer end of the adjusting rod 37. Encircling the adjusting rod 37 between the relatively fixed extension 412 and the relatively movable slotted portion 36 of swinging arm 21 is a coiled compression spring 44, the effect of which is to urge the lower end of swinging arm 21 about its pivot 22 in a eountercloelrwise d1- rection, as viewed in Fig. 1, to the limit permitted by the handle memberr 43, which prevents further movement ofthe adjusting rodl 37 by contacting with the fixed Vextension 42. The distance which the coil spring can move the arm 21k and consequently the normal pre- 'determineddistance ofthe picker roll from 'rollfurther away from the saws. vDue to the yielding mounting of the picker roll, as above described, any obstruction'between the picker roll and saws, since the saws are mounted tozrotate about afixed axis, will force the picker rollfmounting assembly towards the left, as ,viewed in Fig.V 1, to permit the-obstruction to pass through, and after ythe picker roll has been moved for this purpose and the obstruction has passed, the pickerroll immediately returns toits former position predeterminedby the position of the handle member 43.0nfthe4 adjusting rod'37.

The invention alsoprovides means whereby the swingingfront'r is Vshiftedr and adjusted whenever the'position 'of thejpicker roll is shifted and .whereby any operating partsmounted on' the swinging front and cooperatv ed and maintainedinl relative position to the picker roll. Inthe present embodiment thisfmeans includesv a slide both ends of which are turned at right angles tothe main Vbody of .the slide as shown in Fig. 3. The

slide 50 is provided :with a slot 51, through which two' guide pins 53 extend, their ends being threaded in the plate'13. These pins holdA the slide 50 loosely enoughto permit it to be moved back'andforth in the direction of its `Aslot'with resnectto the lined plate 13; i

Theinnerzend of the slide is adapted to'be contacted by a vertical edge of the arm 21, asshown in Figs; 1 and V3, and thekouter end 56 of the slideis adapted to abut against the innerY face of the swinging front'plate 11, as shown-in Figfl.

,'When the picker roll assembly is moved to the left-against the action of spring 44, as

n viewed in Fig.V 1, due to an 'obstruction'ras already described, the swinging arm 21 l moves fthe slide150 lto the left, `thus causing the. outer end 56 ofthe slide to encounter-the inner face ofA the swinging front vplate 11,

Ymoving it outwardlyabout its pivot 12,

` Y Thus itis that lthe 'swinging front is shifted and adjusted whenever the position of the Y 'picler roll is shifted andtherefore any operating parts mountedon :the swinging front ,A said arms. c ing with the picker roll will be likewise shiftand cooperating with the picker roll will likewise be shifted and maintained in a relative position to the picker roll.

, The plate 21 is slotted, as indicated at 57, .to permit adjustment of the picker roll shaft 13 with respect to' the arm 21, and a corresponding opening 58 is provided in the plate 13 for the same purpose. Swinging move- Vment of the arm 21 is limited by a. bolt 59, -which passes through a curvedslot 60 `1n the lin predetermined position with respect to said saws.l v A 3.-A huller gin having'v a picker roll, cooperating saws, pivoted picker .roll bearing supporting arms, bearings for said picker roll carried by said arms and vertically mov- .able thereon, and devices holdingv said arms yieldingly in predetermined position with respect to said `saws,'said devices includingadjusting rods and springs cooperating with 4'. "A huller ginhaving a picker roll, cooperating saws, headplates, picker roll bearing supporting arms pivotally mounted thereon, bearings .for saidpicker roll carried by said arms and vertically `movable thereon, and devicesholding said arms yieldinglyin predetermined position with respect to said saws, said devices including adjusting rods cooperatingwith Vsaid Varms and prov vided with handle operating meanscooperating with said head plates fory moving said Varms away from said'saws. and a spring encircling eachadjusting rod and cooperating with said arms and said head plates forurgving saidk arms yieldinglv toward said saws to a position determined kby saidA handleoperating means.

5. A huller gin having apicker roll, cooperating saws, head plates, bearing supports-for said picker roll, and devices for holding said .bearing supports yieldingly in predetermined position'with'respect to said saws.l said devices including springsV urging said bearing supports toward said saws, and

adjusting membersjcooperating lwith said su pportsa.nd said head'plates and adjustably limiting the movement byl said springs of said supports toward said saws. f 6.7' A huller gin-having end head -nlates'and a movablefront plate, a picker lroll and cooperating saws, bearings for said picker roll, and devices holding said bearings yieldingly in normal predetermined position with respect to said saws, said bearings being movable away from said saws by an obstruction between the saws and picker roll and being Yreturned to said predetermined position by said devices after such obstruction has passed, and front plate opening members actuated by movement of said picker roll bearings away from said saws for moving said front plate outwardly with respect to the gin to discharge obstructions therefrom.

In testimony whereof, I affix my signature.

THOMAS OLIVER OTT. 

